Journal of Animal Environmental Science (한국축산시설환경학회지)

The Korean Society of Animal Environmental Science & Technology (한국축산환경학회)
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Status of Anaerobic Digestion Facility for Pig-slurry in Korea

국내 가축분뇨 혐기소화시설 현황 및 운영실태 분석

  • 정광화 (농촌진흥청 국립축산과학원) ;
  • 김중곤 (농촌진흥청 국립축산과학원) ;
  • 한덕우 (농촌진흥청 국립축산과학원) ;
  • 곽정훈 (농촌진흥청 국립축산과학원)
  • Received : 2014.03.10
  • Accepted : 2014.03.19
  • Published : 2014.03.30
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Abstract

This study was conducted to survey and inspect the currently operating anaerobic digestion facilities for animal manure. Recently, the number of anaerobic digestion facility for livestock manure is on the rise thanks to growing interest in developing alternative energy. A anaerobic digestion system has been constructed in large scale farms or animal manure public resource center. Currently, most animal manure anaerobic digestion facilities in operation are producing biogas from the pig slurry which contains 97% water. Methane gas can be used to operate a engine generator which then produces electricity. Anaerobic digestate, a by-product of digestion, is mostly utilized as a liquid fertilizer after curing processing. Only in a few cases, it can be discharged after wastewater treatment process. The problem of anaerobic digestate treatment is the imbalance of C/N ratio. The content of N was too high to keep it into normal process.

Keywords

References

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